Slow and beautifully falling snow flakes made with Max 2009. Using particle systems. Easy to change the number of particles, speed, size of flakes, animation length, etc...
You can also change the falling object just selecting the emitter, pressing 'Pick' and selecting your desired 3d or 2d object.
Alpha channel (mask) for easy mix the flakes with your own videos. Just open, hit render and in 4 minutos you will have 500 frames of TGAs with alpha channel for mixing it with your video and giving it an instant Christmas look.
Download the preview video at the right of this page to see them animated.